I did not receive a letter of admission during the first round (end of July, beginning of August) do I still have chances?
Yes, sometimes not all allocated seats are taken by the candidates and there might still be unoccupied seats available. In this case, FU Berlin Admissions Office may send the second round of admission letters to fill the empty seats. This means, candidates may still receive an admission letter towards mid-August. As soon as all places are filled, FU will send rejection letters, which will be the final decision.